13785623 has 8 divisors (see below), whose sum is σ = 14740128. Its totient is φ = 12847104.

The previous prime is 13785619. The next prime is 13785641. The reversal of 13785623 is 32658731.

13785623 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13785623 - 2² = 13785619 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13785613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2186 + ... + 5687.

It is an arithmetic number, because the mean of its divisors is an integer number (1842516).

Almost surely, 2^13785623 is an apocalyptic number.

13785623 is a deficient number, since it is larger than the sum of its proper divisors (954505).

13785623 is a wasteful number, since it uses less digits than its factorization.

13785623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7993.

The product of its digits is 30240, while the sum is 35.

The square root of 13785623 is about 3712.8995407902. The cubic root of 13785623 is about 239.7777050472. Note that the first 4 decimals are identical.

The spelling of 13785623 in words is "thirteen million, seven hundred eighty-five thousand, six hundred twenty-three".